14-15

I found a weak layer of surface hoar buried two feet deep in four of my six pits, but they propagated in only two.  This one took 32 hits to get it to go, a sign of strength, while another on Henderson Bench scored ECTP21.  We saw a few avalanches from Wed-Thur, but these were small and on very steep terrain.  Photo: GNFAC


Forecast link: GNFAC Avalanche Advisory for Tue Jan 13, 2015GNFAC Avalanche Advisory for Wed Jan 14, 2015
Cooke City, 2015-01-12
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    • GNFAC Avalanche Forecast for Mon Jan 12, 2015

    Snowpack and Avalanche Discussion

    Bridger Range   

    The Bridger Range was favored heavily during this last storm. Over the twelve hour period from 3am to 3pm yesterday, both Brackett Creek Snotel site and Bridger Bowl picked up eight inches of dense snow totaling one inch of SWE. While the Bridgers have a fairly strong snowpack, one inch of SWE in a twelve hour period is a red flag.  This rapid and heavy load will stress any weakness existing in the snowpack.

    This small avalanche near Daisy Pass (Crown Butte in background) was triggered by either a snowmobiler or snowbike on Thursday, January 8. Photo: GNFAC


    Forecast link: GNFAC Avalanche Forecast for Mon Jan 12, 2015GNFAC Avalanche Advisory for Tue Jan 13, 2015GNFAC Avalanche Advisory for Wed Jan 14, 2015GNFAC Avalanche Forecast for Thu Jan 15, 2015GNFAC Avalanche Forecast for Fri Jan 16, 2015
    Cooke City, 2015-01-11
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